Contour gauge of EF-S mount profile
Lens and body check cut-cuts made from gauge profile (the BODY Cut out was "inserted" and used to test mirror clearance)
Cut out check (was cut out the about 1.5mm More glass protrusion than real lens)
To remove mount remove 6 screws (You'll need a SMALL Phillips)
Removed mount + paper used to protect glass when measuring profile
Regular EF vs EF-S mount profiles
Visual check of lens "overhang" with standard EF mount
I could not use the metal mount (as planned) because of screw-hole mismatch
Materials to modify plastic mount
Inner portion of lens mount to be removed was sanded
Epoxy prior to mixing
Epoxy poured in to groove to be removed
Lens after removal of protruding ridge
Another view of the "De-S'ed" 18-55mm EF lens
Lens with new mount at 55mm
Lens with new mount at 18mm
Lens at 18mm with glass exteding beyond mount
New gauge cut-out made (more accurate and about 1.2mm shorter the early version) and camera clearance checked (OK)
Lens testing on 10D @55mm
Lens testing on 10D @35mm
Lens testing on 10D @28mm
Lens testing on 10D @22mm (at this point the glass begins to protrude past the plastic mount)
Lens testing on 10D @18mm - max glass protrusion - I WAS SWEATING when I pressed the shutter - EVERYTHING OK